One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,9,12,16)(4,13,10,8)(6,14,15,11)(17,18)(19,29)(20,22)(21,30)(23,27)(24,28)(25,26)(31,32)(1,3,10,14,5,12,4,11)(2,6,13,16,7,15,8,9)(17,19,23,32,24,30,22,26)(18,25,20,21,28,31,27,29)(2,7)(6,15)(8,13)(9,16)(17,20,23,28,24,27,22,18)(19,25,32,21,30,31,26,29)(1,3,10,14,5,12,4,11)(2,6,13,16,7,15,8,9)(17,21,23,31,24,29,22,25)(18,26,20,19,28,32,27,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.